APA
Petersen W., . (1974). How to be a saint while lying flat on your back. Grand Rapids, MI: The Evangelical Foundation, Inc.
Chicago
Petersen William, . 1974. How to be a saint while lying flat on your back. Grand Rapids, MI: The Evangelical Foundation, Inc.
Harvard
Petersen W., . (1974). How to be a saint while lying flat on your back. Grand Rapids, MI: The Evangelical Foundation, Inc.
MLA
Petersen William, . How to be a saint while lying flat on your back. Grand Rapids, MI: The Evangelical Foundation, Inc. 1974.